{"id":18093,"date":"2024-07-18T11:30:28","date_gmt":"2024-07-18T02:30:28","guid":{"rendered":"https:\/\/sendgrid.kke.co.jp\/blog\/?p=18093"},"modified":"2026-02-03T17:26:26","modified_gmt":"2026-02-03T08:26:26","slug":"%e3%82%b9%e3%83%86%e3%83%83%e3%83%97%e3%81%94%e3%81%a8%e3%81%ab%e8%a7%a3%e8%aa%ac%ef%bc%81spf-dkim-dmarc%e8%a8%ad%e5%ae%9a%e3%82%92%e3%83%81%e3%82%a7%e3%83%83%e3%82%af%e3%81%99%e3%82%8b%e6%96%b9","status":"publish","type":"post","link":"https:\/\/sendgrid.kke.co.jp\/blog\/?p=18093","title":{"rendered":"\u30b9\u30c6\u30c3\u30d7\u3054\u3068\u306b\u89e3\u8aac\uff01SPF\/DKIM\/DMARC\u8a2d\u5b9a\u3092\u30c1\u30a7\u30c3\u30af\u3059\u308b\u65b9\u6cd5"},"content":{"rendered":"<p><img decoding=\"async\" src=\"https:\/\/sendgrid.kke.co.jp\/blog\/wp\/wp-content\/uploads\/2024\/07\/20240718_blog.png\" alt=\"\u6b63\u3057\u304f\u30e1\u30fc\u30eb\u306e\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c(SPF\/DKIM\/DMARC)\u3092\u8a2d\u5b9a\u3067\u304d\u3066\u3044\u308b\u304b\u78ba\u304b\u3081\u308b\u65b9\u6cd5\" width=\"100%\" class=\"aligncenter size-full wp-image-18094\" srcset=\"https:\/\/sendgrid.kke.co.jp\/blog\/wp\/wp-content\/uploads\/2024\/07\/20240718_blog.png 650w, https:\/\/sendgrid.kke.co.jp\/blog\/wp\/wp-content\/uploads\/2024\/07\/20240718_blog-300x185.png 300w, https:\/\/sendgrid.kke.co.jp\/blog\/wp\/wp-content\/uploads\/2024\/07\/20240718_blog-225x139.png 225w\" sizes=\"(max-width: 650px) 100vw, 650px\" \/><\/p>\n<p>\u30e1\u30fc\u30eb\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3092\u5f37\u5316\u3059\u308b\u4e0a\u3067\u3001SPF\uff08Sender Policy Framework\uff09\u3001DKIM\uff08DomainKeys Identified Mail\uff09\u3001DMARC\uff08Domain-based Message Authentication, Reporting and Conformance\uff09\u3092\u9069\u5207\u306b\u8a2d\u5b9a\u3059\u308b\u3053\u3068\u306f\u975e\u5e38\u306b\u91cd\u8981\u3067\u3059\u3002\u3057\u304b\u3057\u3001\u3053\u308c\u3089\u3092\u6b63\u3057\u304f\u8a2d\u5b9a\u3057\u3001\u78ba\u8a8d\u3059\u308b\u306e\u306f\u8907\u96d1\u306a\u4f5c\u696d\u306b\u306a\u308a\u304c\u3061\u3067\u3059\u3002<br \/>\nDNS\u30ec\u30b3\u30fc\u30c9\u306e\u8a2d\u5b9a\u3001\u30ec\u30b3\u30fc\u30c9\u306e\u6b63\u3057\u3055\u3001\u305d\u3057\u3066\u30e1\u30fc\u30eb\u306b\u9069\u5207\u306b\u53cd\u6620\u3055\u308c\u3066\u3044\u308b\u304b\u3092\u78ba\u8a8d\u3059\u308b\u30d7\u30ed\u30bb\u30b9\u306f\u3001\u521d\u3081\u3066\u306e\u65b9\u306b\u3068\u3063\u3066\u306f\u7279\u306b\u96e3\u3057\u304f\u611f\u3058\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001\u5177\u4f53\u7684\u306a\u624b\u9806\u3068\u30c4\u30fc\u30eb\u3092\u7d39\u4ecb\u3057\u306a\u304c\u3089\u3001SPF\/DKIM\/DMARC\u306e\u8a2d\u5b9a\u3092\u78ba\u8a8d\u3059\u308b\u65b9\u6cd5\u3092\u8a73\u3057\u304f\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n<p>\u306a\u304a\u3001\u3053\u306e\u8a18\u4e8b\u3067\u306fSPF\/DKIM\/DMARC\u306eDNS\u30ec\u30b3\u30fc\u30c9\u305d\u306e\u3082\u306e\u306e\u89e3\u8aac\u306f\u3057\u307e\u305b\u3093\u3002\u30e1\u30fc\u30eb\u8a8d\u8a3c\u6280\u8853\u306e\u4ed5\u7d44\u307f\u3084\u5177\u4f53\u7684\u306a\u30ec\u30b3\u30fc\u30c9\u306e\u5f62\u5f0f\u3092\u77e5\u308a\u305f\u3044\u5834\u5408\u306f\u3001\u904e\u53bb\u306e\u30d6\u30ed\u30b0\u8a18\u4e8b\u3092\u3054\u89a7\u304f\u3060\u3055\u3044\u3002<\/p>\n<ul>\n<li><a href=\"https:\/\/sendgrid.kke.co.jp\/blog\/?p=10121\" rel=\"noopener\" target=\"_blank\">SPF, DKIM\u306e\u7279\u5fb4\u3068\u9055\u3044<\/a><\/li>\n<li><a href=\"https:\/\/sendgrid.kke.co.jp\/blog\/?p=3137\" rel=\"noopener\" target=\"_blank\">DMARC\u3068\u306f\uff1f\u30ec\u30b3\u30fc\u30c9\u306e\u8aad\u307f\u65b9\u3084\u5bfe\u5fdc\u65b9\u6cd5\u3092\u89e3\u8aac<\/a><\/li>\n<\/ul>\n<p>\u307e\u305f\u3001DNS\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u30d7\u30ed\u30d0\u30a4\u30c0\uff08\u304a\u540d\u524d.com\u3001\u3055\u304f\u3089\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u7b49\uff09\u3067\u306e\u5177\u4f53\u7684\u306a\u30ec\u30b3\u30fc\u30c9\u767b\u9332\u624b\u9806\u3092\u77e5\u308a\u305f\u3044\u5834\u5408\u306f\u3001\u5229\u7528\u3057\u3066\u3044\u308b\u30b5\u30fc\u30d3\u30b9\u306e\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u3092\u3054\u78ba\u8a8d\u304f\u3060\u3055\u3044\u3002\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001\u30ec\u30b3\u30fc\u30c9\u3092\u767b\u9332\u3057\u305f\u5f8c\u306b\u3001\u5916\u90e8\u30b5\u30fc\u30d3\u30b9\u3092\u7528\u3044\u3066\u8a2d\u5b9a\u3092\u30c1\u30a7\u30c3\u30af\u3059\u308b\u65b9\u6cd5\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n<h3>1. \u30c9\u30e1\u30a4\u30f3\u306eDNS\u30ec\u30b3\u30fc\u30c9\u304c\u8a2d\u5b9a\u3067\u304d\u3066\u3044\u308b\u304b\u78ba\u304b\u3081\u308b<\/h3>\n<p>\u307e\u305a\u306f\u3001\u610f\u56f3\u3057\u305f\u901a\u308a\u306bDNS\u30ec\u30b3\u30fc\u30c9\u304c\u8a2d\u5b9a\u3067\u304d\u3066\u3044\u308b\u304b\u3069\u3046\u304b\u3092\u78ba\u8a8d\u3057\u307e\u3057\u3087\u3046\u3002\u7c21\u6613\u7684\u306a\u78ba\u8a8d\u30c4\u30fc\u30eb\u3068\u3057\u3066\u3001\u300cGoogle Admin Toolbox\u300d\u306e<a href=\"https:\/\/toolbox.googleapps.com\/apps\/dig\/\" rel=\"noopener\" target=\"_blank\">Dig\u30c4\u30fc\u30eb<\/a>\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u30c4\u30fc\u30eb\u3067\u306f\u3001MX\u3001TXT\u3001CNAME\u7b49\u306e\u30bf\u30a4\u30d7\u3054\u3068\u306b\u3001\u30c9\u30e1\u30a4\u30f3\u306e\u8a2d\u5b9a\u3092\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002\u4f8b\u3048\u3070\u300cexample.com\u300d\u30c9\u30e1\u30a4\u30f3\u3092\u6301\u3063\u3066\u3044\u3066\u3001\u305d\u306eTXT\u30ec\u30b3\u30fc\u30c9\u3092DNS\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u30d7\u30ed\u30d0\u30a4\u30c0\u3067\u8a2d\u5b9a\u3057\u305f\u3068\u3057\u307e\u3059\u3002\u305d\u306e\u5834\u5408\u306f\u4ee5\u4e0b\u306e\u56f3\u306e\u3088\u3046\u306b\u3001\u2460\u540d\u524d\u6b04\u306b\u300cexample.com\u300d\u3092\u5165\u529b\u3057\u3001\u2461\u30ec\u30b3\u30fc\u30c9\u30bf\u30a4\u30d7\u3068\u3057\u3066\u300cTXT\u300d\u3092\u9078\u629e\u3059\u308b\u3068\u3001\u2462\u7d50\u679c\u306e\u300cVALUE\u300d\u306b\u8a2d\u5b9a\u3057\u305f\u5024\u304c\u8868\u793a\u3055\u308c\u307e\u3059\u3002<\/p>\n<p><a href=\"https:\/\/sendgrid.kke.co.jp\/blog\/wp\/wp-content\/uploads\/2024\/07\/fig1-1.png\" target=\"_blank\"><img decoding=\"async\" src=\"https:\/\/sendgrid.kke.co.jp\/blog\/wp\/wp-content\/uploads\/2024\/07\/fig1-1.png\" alt=\"\u30c9\u30e1\u30a4\u30f3\u306eDNS\u30ec\u30b3\u30fc\u30c9\u304c\u8a2d\u5b9a\u3067\u304d\u3066\u3044\u308b\u304b\u78ba\u304b\u3081\u308b\" width=\"100%\" class=\"aligncenter size-full wp-image-18097\" srcset=\"https:\/\/sendgrid.kke.co.jp\/blog\/wp\/wp-content\/uploads\/2024\/07\/fig1-1.png 1206w, https:\/\/sendgrid.kke.co.jp\/blog\/wp\/wp-content\/uploads\/2024\/07\/fig1-1-300x173.png 300w, https:\/\/sendgrid.kke.co.jp\/blog\/wp\/wp-content\/uploads\/2024\/07\/fig1-1-768x443.png 768w, https:\/\/sendgrid.kke.co.jp\/blog\/wp\/wp-content\/uploads\/2024\/07\/fig1-1-1024x590.png 1024w\" sizes=\"(max-width: 1206px) 100vw, 1206px\" \/><\/a><\/p>\n<p>\u3082\u3057DNS\u30ec\u30b3\u30fc\u30c9\u304c\u5b58\u5728\u3057\u306a\u3044\u3068\u3001\u7d50\u679c\u304c\u8868\u793a\u3055\u308c\u308b\u4ee3\u308f\u308a\u306b\u300cRecord not found!\u300d\u306e\u6587\u5b57\u304c\u8868\u793a\u3055\u308c\u307e\u3059\u3002DNS\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u30d7\u30ed\u30d0\u30a4\u30c0\u3067\u30ec\u30b3\u30fc\u30c9\u3092\u7de8\u96c6\u3057\u305f\u76f4\u5f8c\u306b\u8abf\u3079\u308b\u3068\u3001\u30d7\u30ed\u30d0\u30a4\u30c0\u5074\u306e\u8a2d\u5b9a\u304c\u5b8c\u4e86\u3057\u3066\u3044\u306a\u304b\u3063\u305f\u308a\u3001\u30ad\u30e3\u30c3\u30b7\u30e5\u304c\u6b8b\u3063\u3066\u3044\u305f\u308a\u3057\u3066\u6b63\u3057\u304f\u8868\u793a\u3055\u308c\u306a\u3044\u3053\u3068\u3082\u3042\u308a\u307e\u3059\u3002\u305d\u306e\u5834\u5408\u306f\u5c11\u3057\u6642\u9593\u3092\u7a7a\u3051\u3066\u8a66\u3057\u3001\u305d\u308c\u3067\u3082\u7d50\u679c\u304c\u5909\u308f\u3089\u306a\u3051\u308c\u3070\u30d7\u30ed\u30d0\u30a4\u30c0\u5074\u306e\u8a2d\u5b9a\u5185\u5bb9\u3092\u898b\u76f4\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<h3>2. SPF\/DKIM\/DMARC\u30ec\u30b3\u30fc\u30c9\u306e\u6587\u6cd5\u304c\u6b63\u3057\u3044\u304b\u3069\u3046\u304b\u3092\u78ba\u304b\u3081\u308b<\/h3>\n<p>DNS\u30ec\u30b3\u30fc\u30c9\u304c\u5b58\u5728\u3059\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u305f\u3089\u3001\u305d\u306e\u30ec\u30b3\u30fc\u30c9\u304c\u6587\u6cd5\u306b\u5247\u3063\u3066\u6b63\u3057\u304f\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u308b\u304b\u3092\u78ba\u8a8d\u3057\u307e\u3057\u3087\u3046\u3002\u4eca\u56de\u306fDMARC\u30ec\u30dd\u30fc\u30c8\u89e3\u6790\u30b5\u30fc\u30d3\u30b9\u3092\u63d0\u4f9b\u3059\u308b<a href=\"https:\/\/dmarcian.com\/\" rel=\"noopener\" target=\"_blank\">dmarcian<\/a>\u306e\u7121\u6599\u30aa\u30f3\u30e9\u30a4\u30f3\u30c4\u30fc\u30eb\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002<br \/>\nSPF\/DKIM\/DMARC\u306e\u8a2d\u5b9a\u72b6\u6cc1\u306e\u6982\u8981\u3092\u4e00\u5ea6\u306b\u8868\u793a\u3059\u308b\u30c4\u30fc\u30eb\u3082\u3042\u308b\u306e\u3067\u3059\u304c\u3001\u6b63\u78ba\u306a\u72b6\u6cc1\u628a\u63e1\u306e\u305f\u3081\u306b\u306f3\u3064\u305d\u308c\u305e\u308c\u306e\u691c\u67fb\u30c4\u30fc\u30eb\u3092\u5229\u7528\u3059\u308b\u3053\u3068\u3092\u304a\u52e7\u3081\u3057\u307e\u3059\u3002<\/p>\n<h4>SPF<\/h4>\n<p>\u300c<a href=\"https:\/\/dmarcian.com\/spf-survey\/\" rel=\"noopener\" target=\"_blank\">SPF Surveyor<\/a>\u300d\u306b\u30c9\u30e1\u30a4\u30f3\u3092\u5165\u529b\u3059\u308b\u3068\u3001\u305d\u306e\u30c9\u30e1\u30a4\u30f3\u306b\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u308bSPF\u30ec\u30b3\u30fc\u30c9\u3092\u691c\u67fb\u3057\u3066\u7d50\u679c\u3092\u8868\u793a\u3057\u3066\u304f\u308c\u307e\u3059\u3002\u4e0b\u306e\u56f3\u306f\u300csendgrid.com\u300d\u306e\u7d50\u679c\u3067\u3059\u3002<\/p>\n<p><a href=\"https:\/\/sendgrid.kke.co.jp\/blog\/wp\/wp-content\/uploads\/2024\/07\/fig2.png\" target=\"_blank\"><img decoding=\"async\" src=\"https:\/\/sendgrid.kke.co.jp\/blog\/wp\/wp-content\/uploads\/2024\/07\/fig2.png\" alt=\"SPF\u2460\" width=\"100%\" class=\"aligncenter size-full wp-image-18099\" srcset=\"https:\/\/sendgrid.kke.co.jp\/blog\/wp\/wp-content\/uploads\/2024\/07\/fig2.png 764w, https:\/\/sendgrid.kke.co.jp\/blog\/wp\/wp-content\/uploads\/2024\/07\/fig2-150x150.png 150w, https:\/\/sendgrid.kke.co.jp\/blog\/wp\/wp-content\/uploads\/2024\/07\/fig2-300x300.png 300w\" sizes=\"(max-width: 764px) 100vw, 764px\" \/><\/a><\/p>\n<p>\u554f\u984c\u304c\u306a\u3044\u5834\u5408\u306f\u7d50\u679c\u304c\u7dd1\u8272\u3067\u8868\u793a\u3055\u308c\u307e\u3059\u3002\u307e\u305f\u3001DNS\u30eb\u30c3\u30af\u30a2\u30c3\u30d7\u56de\u6570\u3084\u6307\u5b9a\u3055\u308c\u3066\u3044\u308bIP\u30a2\u30c9\u30ec\u30b9\u306e\u6570\u3082\u8868\u793a\u3055\u308c\u307e\u3059\u3002DNS\u30eb\u30c3\u30af\u30a2\u30c3\u30d7\u56de\u6570\u3068\u306f\u3001SPF\u30ec\u30b3\u30fc\u30c9\u306e\u691c\u8a3c\u904e\u7a0b\u3067\u5fc5\u8981\u3068\u306a\u308bDNS\u30af\u30a8\u30ea\u306e\u56de\u6570\u306e\u3053\u3068\u3067\u300110\u56de\u304c\u4e0a\u9650\u3068\u5b9a\u3081\u3089\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u3082\u3057\u8d64\u8272\u3084\u9ec4\u8272\u306e\u8868\u793a\u304c\u51fa\u305f\u3089\u3001\u30ec\u30b3\u30fc\u30c9\u304c\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u306a\u3044\u304b\u8aa4\u308a\u304c\u3042\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u306e\u3067\u3001\u8a18\u8f09\u4e8b\u9805\u3092\u78ba\u8a8d\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<p><a href=\"https:\/\/sendgrid.kke.co.jp\/blog\/wp\/wp-content\/uploads\/2024\/07\/fig3-1.png\" target=\"_blank\"><img decoding=\"async\" src=\"https:\/\/sendgrid.kke.co.jp\/blog\/wp\/wp-content\/uploads\/2024\/07\/fig3-1.png\" alt=\"SPF\u2461\" width=\"100%\" class=\"aligncenter size-full wp-image-18100\" srcset=\"https:\/\/sendgrid.kke.co.jp\/blog\/wp\/wp-content\/uploads\/2024\/07\/fig3-1.png 772w, https:\/\/sendgrid.kke.co.jp\/blog\/wp\/wp-content\/uploads\/2024\/07\/fig3-1-300x82.png 300w, https:\/\/sendgrid.kke.co.jp\/blog\/wp\/wp-content\/uploads\/2024\/07\/fig3-1-768x209.png 768w\" sizes=\"(max-width: 772px) 100vw, 772px\" \/><\/a><\/p>\n<p>\u6ce8\u610f\u3059\u3079\u304d\u70b9\u3068\u3057\u3066\u3001SPF\u30ec\u30b3\u30fc\u30c9\u304c\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u308b\u30c9\u30e1\u30a4\u30f3\u3068\u3001\u53d7\u4fe1\u8005\u304c\u901a\u5e38\u53d7\u4fe1\u30c8\u30ec\u30a4\u3067\u9001\u4fe1\u5143\u3068\u5224\u65ad\u3059\u308b\u30c9\u30e1\u30a4\u30f3\uff08\u30d8\u30c3\u30c0From\uff09\u306f\u5fc5\u305a\u3057\u3082\u540c\u3058\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u4f8b\u3048\u3070\u3001Twilio SendGrid\u3092\u4f7f\u3063\u3066\u9001\u4fe1\u3057\u3066\u3044\u308b\u5834\u5408\u3001\u5b9f\u969b\u306bSPF\u8a8d\u8a3c\u306e\u5bfe\u8c61\u3068\u306a\u308b\u30c9\u30e1\u30a4\u30f3\u306f<a href=\"https:\/\/sendgrid.kke.co.jp\/docs\/Tutorials\/D_Improve_Deliverability\/using_whitelabel.html#-Domain-Whitelabel\" rel=\"noopener\" target=\"_blank\">Domain Authentication<\/a>\u3092\u8a2d\u5b9a\u3057\u305f\u30c9\u30e1\u30a4\u30f3\u3067\u3042\u308a\u3001\u300cem1234.example.com\u300d\u306e\u3088\u3046\u306b\u30b5\u30d6\u30c9\u30e1\u30a4\u30f3\uff08em1234\u306e\u90e8\u5206\uff09\u304c\u3064\u304d\u307e\u3059\u3002SendGrid\u3092\u4f7f\u3063\u3066\u3044\u308b\u5834\u5408\u306f\u3001\u30d8\u30c3\u30c0From\u306e\u30c9\u30e1\u30a4\u30f3\u3067\u306f\u306a\u304fDomain Authentication\u753b\u9762\u3067\u8a2d\u5b9a\u3055\u308c\u305f\u30c9\u30e1\u30a4\u30f3\u3067\u30c1\u30a7\u30c3\u30af\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<h4>DKIM<\/h4>\n<p>\u300c<a href=\"https:\/\/dmarcian.com\/dkim-inspector\/\" rel=\"noopener\" target=\"_blank\">DKIM Inspector<\/a>\u300d\u3067\u306f\u3001\u5165\u529b\u3055\u308c\u305f\u30c9\u30e1\u30a4\u30f3\u306b\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u308bDKIM\u30ec\u30b3\u30fc\u30c9\u3092\u691c\u67fb\u3057\u3001\u7d50\u679c\u3092\u8868\u793a\u3057\u307e\u3059\u3002DKIM\u306e\u4ed5\u69d8\u4e0a\u3001\u300c\u30bb\u30ec\u30af\u30bf\u300d\u3068\u547c\u3070\u308c\u308b\u6587\u5b57\u5217\u3092\u6307\u5b9a\u3057\u3001\u305d\u308c\u3092\u30b5\u30d6\u30c9\u30e1\u30a4\u30f3\u306b\u542b\u3081\u305f\u30c9\u30e1\u30a4\u30f3\u306b\u30ec\u30b3\u30fc\u30c9\u3092\u8a2d\u5b9a\u3057\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u30c4\u30fc\u30eb\u3067\u78ba\u8a8d\u3059\u308b\u969b\u3082\u30bb\u30ec\u30af\u30bf\u306e\u6587\u5b57\u5217\u3092\u6307\u5b9a\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002SendGrid\u306eDomain Authentication\u3092\u8a2d\u5b9a\u3059\u308b\u5834\u5408\u306f\u30c7\u30d5\u30a9\u30eb\u30c8\u3067\u306fs1\u3068s2\u3068\u3044\u3046\u30bb\u30ec\u30af\u30bf\u304c\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002\u4ee5\u4e0b\u306f\u30c9\u30e1\u30a4\u30f3\u306b\u300csendgrid.com\u300d\u3001\u30bb\u30ec\u30af\u30bf\u306b\u300cs1\u300d\u3092\u6307\u5b9a\u3057\u305f\u7d50\u679c\u3067\u3059\u3002\u554f\u984c\u304c\u306a\u3051\u308c\u3070\u7dd1\u8272\u3067\u8868\u793a\u3055\u308c\u307e\u3059\u3002<\/p>\n<p><a href=\"https:\/\/sendgrid.kke.co.jp\/blog\/wp\/wp-content\/uploads\/2024\/07\/fig4-1.png\" target=\"_blank\"><img decoding=\"async\" src=\"https:\/\/sendgrid.kke.co.jp\/blog\/wp\/wp-content\/uploads\/2024\/07\/fig4-1.png\" alt=\"DKIM\" width=\"100%\" class=\"aligncenter size-full wp-image-18105\" srcset=\"https:\/\/sendgrid.kke.co.jp\/blog\/wp\/wp-content\/uploads\/2024\/07\/fig4-1.png 767w, https:\/\/sendgrid.kke.co.jp\/blog\/wp\/wp-content\/uploads\/2024\/07\/fig4-1-300x277.png 300w\" sizes=\"(max-width: 767px) 100vw, 767px\" \/><\/a><\/p>\n<h4>DMARC<\/h4>\n<p>DMARC\u30ec\u30b3\u30fc\u30c9\u3082\u540c\u69d8\u306b\u8abf\u3079\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u300c<a href=\"https:\/\/dmarcian.com\/dmarc-inspector\" rel=\"noopener\" target=\"_blank\">DMARC Inspector<\/a>\u300d\u306f\u3001\u30c9\u30e1\u30a4\u30f3\u3092\u5165\u529b\u3059\u308b\u3068\u7d50\u679c\u3092\u8868\u793a\u3059\u308b\u30c4\u30fc\u30eb\u3067\u3059\u3002\u4ee5\u4e0b\u306f\u300csendgrid.com\u300d\u306eDMARC\u30ec\u30b3\u30fc\u30c9\u3092\u691c\u67fb\u3057\u305f\u7d50\u679c\u3067\u3059\u3002<\/p>\n<p><a href=\"https:\/\/sendgrid.kke.co.jp\/blog\/wp\/wp-content\/uploads\/2024\/07\/fig5-1.png\" target=\"_blank\"><img decoding=\"async\" src=\"https:\/\/sendgrid.kke.co.jp\/blog\/wp\/wp-content\/uploads\/2024\/07\/fig5-1.png\" alt=\"DMARC\" width=\"100%\" class=\"aligncenter size-full wp-image-18108\" srcset=\"https:\/\/sendgrid.kke.co.jp\/blog\/wp\/wp-content\/uploads\/2024\/07\/fig5-1.png 754w, https:\/\/sendgrid.kke.co.jp\/blog\/wp\/wp-content\/uploads\/2024\/07\/fig5-1-300x166.png 300w\" sizes=\"(max-width: 754px) 100vw, 754px\" \/><\/a><\/p>\n<h3>3. \u5b9f\u969b\u306b\u30e1\u30fc\u30eb\u3092\u53d7\u3051\u53d6\u3063\u3066\u78ba\u304b\u3081\u308b<\/h3>\n<p>\u6700\u5f8c\u306b\u3001\u5b9f\u969b\u306b\u30e1\u30fc\u30eb\u3092\u9001\u53d7\u4fe1\u3057\u3066SPF\/DKIM\/DMARC\u306e\u8a8d\u8a3c\u304c\u6b63\u3057\u304f\u6a5f\u80fd\u3057\u3066\u3044\u308b\u304b\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002\u8a8d\u8a3c\u306e\u6210\u529f\u30fb\u5931\u6557\u306f\u53d7\u4fe1\u74b0\u5883\u306b\u3088\u308a\u30b1\u30fc\u30b9\u30d0\u30a4\u30b1\u30fc\u30b9\u3067\u3059\u304c\u3001\u30c6\u30b9\u30c8\u7528\u306e\u30a2\u30ab\u30a6\u30f3\u30c8\u3067\u5b9f\u969b\u306b\u30e1\u30fc\u30eb\u3092\u3084\u308a\u53d6\u308a\u3057\u3066\u78ba\u8a8d\u3059\u308b\u306e\u306f\u975e\u5e38\u306b\u6709\u52b9\u306a\u65b9\u6cd5\u3067\u3059\u3002\u4eca\u56de\u306fGmail\u306e\u30a2\u30ab\u30a6\u30f3\u30c8\u306b\u9001\u4fe1\u3057\u3066\u78ba\u8a8d\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\u30c6\u30b9\u30c8\u30e1\u30fc\u30eb\u3092\u53d7\u3051\u53d6\u3063\u305f\u3089\u30e1\u30fc\u30eb\u3092\u958b\u304d\u3001\u9001\u4fe1\u5143\u306e\u540d\u524d\u3084\u9001\u4fe1\u65e5\u6642\u306e\u8a18\u8f09\u306e\u53f3\u5074\u306b\u3042\u308b\u4e09\u70b9\u30ea\u30fc\u30c0\u30fc\u306b\u30ab\u30fc\u30bd\u30eb\u3092\u5408\u308f\u305b\u3001\u8868\u793a\u3055\u308c\u308b\u30e1\u30cb\u30e5\u30fc\u306e\u300c\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u30bd\u30fc\u30b9\u3092\u8868\u793a\u300d\u3092\u9078\u629e\u3057\u307e\u3059\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/sendgrid.kke.co.jp\/blog\/wp\/wp-content\/uploads\/2024\/07\/fig6-1.png\" alt=\"\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u30bd\u30fc\u30b9\u3092\u8868\u793a\" width=\"100%\" class=\"aligncenter size-full wp-image-18109\" srcset=\"https:\/\/sendgrid.kke.co.jp\/blog\/wp\/wp-content\/uploads\/2024\/07\/fig6-1.png 1330w, https:\/\/sendgrid.kke.co.jp\/blog\/wp\/wp-content\/uploads\/2024\/07\/fig6-1-300x170.png 300w, https:\/\/sendgrid.kke.co.jp\/blog\/wp\/wp-content\/uploads\/2024\/07\/fig6-1-768x434.png 768w, https:\/\/sendgrid.kke.co.jp\/blog\/wp\/wp-content\/uploads\/2024\/07\/fig6-1-1024x579.png 1024w\" sizes=\"(max-width: 1330px) 100vw, 1330px\" \/><\/p>\n<p>\u4e0a\u90e8\u306b\u8868\u793a\u3055\u308c\u308b\u8868\u306e\u4e2d\u306b\u3001SPF\/DKIM\/DMARC\u306e\u9805\u76ee\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u3089\u304c\u5168\u3066\u300cPASS\u300d\u306b\u306a\u3063\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u307e\u3057\u3087\u3046\u3002\u300cPASS\u300d\u306b\u306a\u3089\u306a\u3044\u30b1\u30fc\u30b9\u3067\u3088\u304f\u3042\u308b\u306e\u304c\u3001\u30e1\u30fc\u30eb\u3092\u8ee2\u9001\u3057\u3066\u3044\u308b\u30b1\u30fc\u30b9\u3067\u3059\u3002\u4f8b\u3048\u3070\u30e1\u30fc\u30ea\u30f3\u30b0\u30ea\u30b9\u30c8\u306f\u3001\u30e1\u30fc\u30ea\u30f3\u30b0\u30ea\u30b9\u30c8\u7528\u306b\u7528\u610f\u3055\u308c\u305f\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u306b\u4e00\u5ea6\u9001\u4fe1\u3055\u308c\u305f\u5f8c\u3001\u305d\u306e\u30e1\u30fc\u30eb\u304c\u30ea\u30b9\u30c8\u306b\u767b\u9332\u3055\u308c\u3066\u3044\u308b\u5404\u500b\u4eba\u306b\u8ee2\u9001\u3055\u308c\u308b\u4ed5\u7d44\u307f\u306a\u306e\u3067\u3001SPF\u3084DKIM\u304cPASS\u306b\u306a\u3089\u306a\u3044\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u78ba\u8a8d\u306b\u306f\u500b\u4eba\u306e\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u3092\u4f7f\u3046\u3068\u826f\u3044\u3067\u3057\u3087\u3046\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/sendgrid.kke.co.jp\/blog\/wp\/wp-content\/uploads\/2024\/07\/20240718_fig7.png\" alt=\"SPF\/DKIM\/DMARC\" width=\"100%\" class=\"aligncenter size-full wp-image-18115\" srcset=\"https:\/\/sendgrid.kke.co.jp\/blog\/wp\/wp-content\/uploads\/2024\/07\/20240718_fig7.png 1414w, https:\/\/sendgrid.kke.co.jp\/blog\/wp\/wp-content\/uploads\/2024\/07\/20240718_fig7-300x189.png 300w, https:\/\/sendgrid.kke.co.jp\/blog\/wp\/wp-content\/uploads\/2024\/07\/20240718_fig7-768x484.png 768w, https:\/\/sendgrid.kke.co.jp\/blog\/wp\/wp-content\/uploads\/2024\/07\/20240718_fig7-1024x646.png 1024w\" sizes=\"(max-width: 1414px) 100vw, 1414px\" \/><\/p>\n<h3>\u307e\u3068\u3081<\/h3>\n<p>SPF\u3001DKIM\u3001DMARC\u306f\u3001\u30e1\u30fc\u30eb\u3092\u5c4a\u3051\u308b\u4e0a\u3067\u975e\u5e38\u306b\u91cd\u8981\u306a\u57fa\u672c\u306e\u8a2d\u5b9a\u3067\u3059\u3002\u3057\u304b\u3057\u3001\u6b63\u3057\u304f\u8a2d\u5b9a\u3059\u308b\u305f\u3081\u306b\u306f\u3001DNS\u306e\u8a2d\u5b9a\u3092\u6b63\u3057\u304f\u884c\u3044\u3001\u30ec\u30b3\u30fc\u30c9\u306e\u5185\u5bb9\u306b\u3082\u9593\u9055\u3044\u304c\u306a\u304f\u3001\u3055\u3089\u306b\u5b9f\u969b\u306b\u30e1\u30fc\u30eb\u306b\u6b63\u3057\u304f\u53cd\u6620\u3055\u308c\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u4eca\u56de\u7d39\u4ecb\u3057\u305f\u30c4\u30fc\u30eb\u3092\u4f7f\u3044\u3001\u305d\u308c\u3089\u306e\u8981\u7d20\u3092\u4e00\u3064\u4e00\u3064\u5206\u89e3\u3057\u3066\u78ba\u8a8d\u3059\u308b\u3053\u3068\u3067\u3001\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u306b\u5f79\u7acb\u3066\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u30e1\u30fc\u30eb\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3092\u5f37\u5316\u3059\u308b\u4e0a\u3067\u3001SPF\uff08Sender Policy Framework\uff09\u3001DKIM\uff08DomainKeys Identified Mail\uff09\u3001DMARC\uff08Domain-based Message Aut <a class=\"read-more\" href=\"https:\/\/sendgrid.kke.co.jp\/blog\/?p=18093\">&#8230;\u7d9a\u304d\u3092\u8aad\u3080<\/a><\/p>\n","protected":false},"author":2,"featured_media":18094,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[11],"tags":[],"class_list":["post-18093","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-technical"],"acf":[],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/sendgrid.kke.co.jp\/blog\/index.php?rest_route=\/wp\/v2\/posts\/18093","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sendgrid.kke.co.jp\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sendgrid.kke.co.jp\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sendgrid.kke.co.jp\/blog\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/sendgrid.kke.co.jp\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=18093"}],"version-history":[{"count":15,"href":"https:\/\/sendgrid.kke.co.jp\/blog\/index.php?rest_route=\/wp\/v2\/posts\/18093\/revisions"}],"predecessor-version":[{"id":19957,"href":"https:\/\/sendgrid.kke.co.jp\/blog\/index.php?rest_route=\/wp\/v2\/posts\/18093\/revisions\/19957"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/sendgrid.kke.co.jp\/blog\/index.php?rest_route=\/wp\/v2\/media\/18094"}],"wp:attachment":[{"href":"https:\/\/sendgrid.kke.co.jp\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=18093"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sendgrid.kke.co.jp\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=18093"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sendgrid.kke.co.jp\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=18093"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}